For citations:
Kulik E.G., Pavlenko V.I., Naryshkina S.V. Comparative analysis of clinical and laboratory features in patients with chronic obstructive pulmonary disease depending on the presence of an exacerbation or a novel coronavirus infection. Bulletin Physiology and Pathology of Respiration. 2022;(85):26-31. (In Russ.) https://doi.org/10.36604/1998-5029-2022-85-26-31